package com.fr.collection;

import java.util.Hashtable;
import java.util.LinkedHashMap;
import java.util.HashMap;
import java.util.Map;

/**
 * @author furong
 * @version 创建时间：2016-4-29 下午4:31:25
 */
public class MapTest {
    public static void main(String[] args) {
        Map<Long, Long> map = new HashMap<Long, Long>();
        long a = 1L;
        Long b = new Long(2);
        map.put(a, a);
        map.put(b, b);
        long c = 2L;
        System.out.println(map.get(c));
    }

}
